Lower Back Pain : Causes, Symptoms, Diagnosis & Treatment

Last Updated: 08/07/2022

Lower back pain indicates a disease or damage to the spinal column, nervous structures, soft tissues, internal organs, observed in febrile conditions of various origins. It can be acute, dull, constant, intermittent, burning, shooting, bursting. Sometimes associated with physical activity, weather changes. Pathologies that manifest as back pain are diagnosed on the basis of complaints, anamnesis, examination data and additional studies: radiography, MRI, CT. Before making a diagnosis, rest is necessary, sometimes it is acceptable to use ointments, taking analgesics.

Why does the lower back hurt

Diseases of the spine

A common cause of back pain is congenital anomalies and acquired diseases of the spinal column. The nature of the pain syndrome varies. Pain caused directly by the pathological process, often periodic, local, aching or pulling, associated with the weather, physical activity, being in an uncomfortable position.

Due to muscle spasm, lumbago (lumbago) occurs - a sharp pain, accompanied by restriction of movement. With many pathologies of the spine, lumboischialgia is observed - aching, burning or shooting pain in the lower back, radiating along the back of the thigh. Painful sensations are often found as part of the radicular syndrome. Can be detected in the following diseases of the spinal column:

  • Degenerative pathologies : osteochondrosis, protrusion of the intervertebral disc, intervertebral hernia, spondylosis, spondylarthrosis.
  • Congenital anomalies : sacralization, lumbarization.
  • Polyetiological conditions : spondylolysis, spondylolisthesis.
  • Vascular diseases : disorders of the spinal circulation.
  • Other diseases : Forestier's disease.
  • Secondary lesions of the nervous structures : sciatica, lumbosacral plexitis, myelopathy of various origins.

Curvature of the spine

Insignificant or moderate aching pains are noted with all types of curvature of the spinal column, which is associated with non-physiological redistribution of the load, overstrain of the muscles and ligaments of the back. Soreness appears due to an uncomfortable position of the body, sleeping on a bed that is too hard or too soft. Symptoms are accompanied by:

  • lordosis;
  • kyphosis;
  • scoliosis;
  • kyphoscoliosis;
  • flat back syndrome.

Lower back pain

 

Osteoporosis

Pulling or aching pain in the lumbar and thoracic spine for a long time is the only symptom of osteoporosis. The pain syndrome is expressed slightly, increases after exercise, before changing weather conditions. The symptom is observed in the following varieties of osteoporosis:

  • postmenopausal;
  • juvenile;
  • idiopathic;
  • senile.

Similar pains are detected in patients with secondary forms of pathology caused by genetic diseases, endocrine disorders, chronic intoxications, and taking certain medications. Secondary osteoporosis can also occur against the background of malabsorption syndrome, liver disease, CRF, rheumatoid arthritis, SLE.

Increased soreness, an increase in the duration of pain may be associated with the development of a pathological fracture. Other signs of injury are often not expressed, so the fracture often remains undiagnosed.

Spinal injury

The most common injury is spinal contusion. In mild cases, the pathology is manifested by moderate back pain, aggravated by movement, local edema, and sometimes hematomas and hemorrhages. In severe bruises, neurological disorders are added to the listed symptoms.

A compression fracture of the lumbar spine occurs due to forced flexion of the torso. It is characterized by sharp pain, breath holding at the time of injury. Then there is an increase in pain when turning the body, swelling of the soft tissues is detected. Palpation of the spinous process is painful. Other possible fractures include damage to the arches, transverse processes, spinous processes.

In addition, low back pain is found in patients with traumatic spondylolisthesis and vertebral subluxation. Painful sensations are paroxysmal, reminiscent of lumbago, complemented by a feeling of heaviness and numbness of the lower extremities.

Soft tissue and kidney injuries

Bruising of soft tissues is accompanied by slight or moderate, rapidly subsiding local pain, slight swelling. Hemorrhages are possible. There is no admixture of blood in the urine. Kidney bruises are manifested by soreness and slight short-term hematuria. With kidney injuries of moderate severity, the pain syndrome is intense, pain radiates to the lower abdomen, groin, and genitals. A hematoma is visible in the lumbar region. In severe cases, there is severe pain, prolonged gross hematuria. Shock develops.

Infections of the spine and spinal cord

Osteomyelitis of the spine can be hematogenous, post-traumatic, contact, postoperative. The acute form of the disease is manifested by rapidly increasing pain in the lower back, combined with chills, fever, intoxication syndrome, deterioration of the general condition. The pains are jerking, bursting, so intense that they interfere with any movement, forcing the patient to freeze in bed. In chronic osteomyelitis, the manifestations are smoothed out, a fistulous tract with purulent discharge is formed.

Tuberculosis of the spinal column develops gradually. Initially, periodic deep pains are observed, aggravated after exercise, increased sensitivity of the skin in the projection of the affected vertebrae. Stiffness of gait is formed. Against the background of significant destruction of bone structures, the nature of the pain changes, since it is caused by compression of the nerve roots. The pains become burning, radiate to the legs, are supplemented by paresthesias, numbness.

In patients with spinal epidural abscess, the pain is severe, deep, diffuse, combined with chills, hyperthermia, and muscle tension. Tapping on the spinous processes of the vertebrae is painful. With the progression of the pathology, a radicular syndrome occurs, then paresis, disturbances in the activity of the pelvic organs develop.

Local inflammatory processes

Purulent processes in the superficial tissues and perirenal tissue are accompanied by intense pain in the lower back. Possible causes of pain are boils, carbuncles and paranephritis.

In the first two cases, an abscess is formed in the skin, looks like a limited, sharply painful seal with a diameter of 1 cm or more of a purple or purple-bluish hue with one or more rods in the center. The pain quickly increases, becomes twitching, throbbing, sleep depriving. General hyperthermia, slight or moderate disturbance of the general condition are noted.

With paranephritis, severe fever first occurs. The pain syndrome develops in 2-3 days. The pain is very intense, can be given to the stomach or hypochondrium, aggravated by walking, movement, deep breathing. In some forms of paranephritis, the patient takes a forced position due to pain. The lumbar muscles are tense. Edema, local hyperemia, hyperthermia are revealed. Severe condition.

Infectious diseases

Diffuse aching pain in the lower back, causing a desire to change the position of the body, is characteristic of acute infections, accompanied by fever and intoxication syndrome. In most cases, due to myositis, often combined with pain in the muscles of the limbs. Observed with influenza, tonsillitis, SARS. Sometimes pain is provoked by kidney damage. Infectious diseases accompanied by pain in the lumbar region include:

  • hemorrhagic fevers;
  • Japanese mosquito encephalitis;
  • Ebola;
  • foot and mouth disease;
  • severe form of coronavirus infection;
  • generalized forms of bacterial, fungal, viral infections.

In a number of patients, low back pain is observed during a cytokine storm, an inflammatory reaction that develops against the background of severe infectious diseases. Epidemiological myalgia is accompanied by intense paroxysmal pains lasting up to 1 minute, which appear not only in the lower back, but also in other parts of the back, in the area of ​​the abdominal wall, chest, limbs. Repeated with an interval of 30-6 minutes. Combined with rhinitis, conjunctivitis, severe hyperthermia.

Other muscle lesions

Aching pain in the muscles of the lumbar region is determined after intense physical exertion - performing strength exercises for the muscles of the back, prolonged stay in a forced position with a tense lower back. Myalgia subsides at rest, increases with movement, weakens after warming, gentle warm-up, disappears after a few days.

Myositis develops not only in infectious diseases, but also after hypothermia or overload, against the background of exogenous intoxication, metabolic disorders. Accompanied by prolonged aching pain. There are also special forms of myositis:

  • specific infectious myositis with syphilis and tuberculosis;
  • idiopathic, juvenile dermatomyositis and polymyositis;
  • polymyositis and dermatomyositis in oncological pathologies, systemic connective tissue diseases.

Chronic diffuse pain throughout the body, including the lower back, is seen in fibromyalgia. Combined with sleep disorders, asthenia, neurotic disorders.

Other diseases

In addition to the listed pathologies, back pain can be disturbing in conditions such as:

  • Tumors of the spine, spinal cord : sarcoma, hemangioma, metastases, intramedullary and extramedullary neoplasms of the spinal cord.
  • Kidney diseases : pyelonephritis, glomerulonephritis, urolithiasis, kidney infarction, renal vein thrombosis, kidney cyst, kidney cancer, purulent processes.
  • Hereditary diseases : Pierre-Marie's hereditary cerebellar ataxia.
  • Exogenous intoxications : abuse of phenylpropanolamine.
  • Pathologies of the heart and blood vessels : Loeffler's endocarditis, abdominal aortic aneurysm.
  • Emergency conditions : transfusion shock.

In diseases of the small pelvis, irradiation of pain in the lower back is sometimes noted. The appearance of a symptom is possible with a number of female diseases, prostate cancer, proctitis, sigmoiditis.

Diagnostics

Primary diagnosis is carried out by an orthopedic traumatologist. In the presence of neurological symptoms, the patient is examined by a neurologist. The doctor interrogates the patient, carries out an objective examination. According to indications, consultations of a surgeon, rheumatologist, urologist, and other specialists are prescribed. The diagnostic program may include:

  • Neurological examination. During the study, the specialist evaluates reflexes, muscle strength, coordination of movements, deep and superficial sensitivity.
  • Radiography. On radiographs of the lumbar spine, fractures, a decrease in the height of the intervertebral discs, other degenerative changes, volumetric formations, signs of inflammatory processes, and spondylolisthesis are visible. If necessary, standard radiographs are supplemented with functional studies.
  • Other neuroimaging techniques . To clarify the data of radiography, CT and MRI are used. During computed tomography, the structure of solid structures is studied in detail, and the state of ligaments and intervertebral discs is examined on MRI. Myelography is performed to rule out stenosis.
  • Functional Research . The state of muscles and nerve conduction is assessed using electromyography, electroneurography, and evoked potential studies.
  • Laboratory tests . To confirm the infectious nature of the disease, determine the pathogen, blood tests and microbiological examination are done. Serological tests are used to detect neuroinfections.

According to indications, ultrasound of the kidneys, prostate, pelvic organs, urine tests, ultrasound of the abdominal aorta, and other studies are performed.

Manual therapy

 

Lower back pain treatment

Help at the prehospital stage

In case of traumatic injury to the spine, it is necessary to lay the patient on a shield and immediately deliver to a medical facility. With non-traumatic pain, you should reduce the load on the back, optimize the position of the body during work and rest. Acute pain syndrome is an indication for consultation with a neurologist.

Prior to the examination by a specialist, a single dose of analgesics is possible. With lumbago, lumboischialgia, caused by previously diagnosed degenerative diseases of the spine, the use of local warming and analgesic drugs is allowed. If an infectious process is suspected, local remedies are not indicated.

Conservative therapy

The basis of treatment is physiotherapy and drug therapy. The patient is assigned a protective regimen. The following methods are applied:

  • NSAIDs . Effective for acute and chronic pain in the muscles and spine. Used in the form of tablets, topical agents.
  • Neurotropic vitamins . Patients are administered vitamins of group B, which enhance the effect of drugs of other groups, help to reduce pain.
  • Local anesthetics . With persistent and acute pain, therapeutic blockades with anesthetics are performed. To improve the result of treatment, painkillers are combined with glucocorticosteroids.
  • Physiotherapy . Apply ultrasound, magnetotherapy, transcutaneous electrical stimulation, laser therapy, drug electrophoresis. Perhaps the appointment of massage, manual therapy, acupuncture.

Surgery

Taking into account the characteristics of the pathology, the following surgical interventions are carried out:

  • Instability: interbody fusion, pedicle fixation, plate fixation.
  • Tumors, osteoporosis, osteomyelitis, tuberculosis: sequestrectomy, vertebroplasty, kyphoplasty, corporectomy.
  • Intervertebral hernias: discectomy, microdiscectomy, nucleoplasty.
  • Narrowing of the spinal canal: laminectomy, facetectomy, puncture disc decompression.

In the postoperative period, analgesics and antibiotics are prescribed. Rehabilitation activities include exercise therapy, massage, physiotherapy.

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